Revert 148046 - Revert 147650 - Implement installation of the Chrome App Host.

chrome/installer/util/master_preferences.h

Index: chrome/installer/util/master_preferences.h
===================================================================
--- chrome/installer/util/master_preferences.h	(revision 148103)
+++ chrome/installer/util/master_preferences.h	(working copy)
@@ -164,6 +164,10 @@
     return chrome_;
   }
 
+  bool install_chrome_app_host() const {
+    return chrome_app_host_;
+  }
+
   bool install_chrome_frame() const {
     return chrome_frame_;
   }
@@ -188,6 +192,7 @@
   base::DictionaryValue* distribution_;
   bool preferences_read_from_file_;
   bool chrome_;
+  bool chrome_app_host_;
   bool chrome_frame_;
   bool multi_install_;